"Witch time" refers to a concept in video games where a character temporarily slows down the movements of their enemies when successfully dodging an attack. Full definition
Since both players can trigger witch time themselves it does become extremely hectic, but each stage is usually focused enough that it's always manageable and enjoyable. (metro.co.uk)
I would be wrecking a flock of angelic or demonic enemies, sliding in and out of witch time almost at will, and then the special weapon I had picked up became a literal stripper pole for Bayonetta to dance on, because... well, because, I guess. (thesixthaxis.com)
Second, if you dodge at the last possible second, you'll activate Witch Time, which is essentially Bayonetta's version of bullet time. (riddlethos.com)